Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
  • B62L3/00—Brake-actuating mechanisms; Arrangements thereof
  • B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
  • B62L1/00—Brakes; Arrangements thereof
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
  • B62L3/00—Brake-actuating mechanisms; Arrangements thereof
  • B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
  • B62L3/023—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever acting on fluid pressure systems

Definitions

• the invention relates to a bicycle brake with at least one master cylinder connected to the handle and at least one brake cylinder connected to it by a fluid line, the fluid line opening at both ends in a volume-changing space and the space provided in the master cylinder being able to be reduced in size against an energy accumulator by an element which can be actuated by the handle.
• Two opposing brake cylinders press the pistons with the brake shoes attached to the piston rod in the direction of the rim wall of the wheel when the master cylinder is actuated, liquid being pressed out of the master cylinder and pressed into the brake cylinder.
• both brake shoes are pressed on, a static pressure build-up in the encoder or Brake cylinder, which is converted into force and friction on the rim via the brake shoes.
• the spring which is located in the master cylinder as a force accumulator, pushes the piston into its initial position.
• the resulting vacuum leads the liquid back into the master cylinder and also allows the brake shoes to move into their initial positions, with no transferable braking force in the system .
• the inventor decided to operate with a closed and therefore leak-free fluid pressure system.
• the inventor decided on a hollow body made of an elastic, easily deformable material in the cylinder-ring area as a sheathing and in the end face or.
• Floor area from a fixed or difficult to deform material.
• these two completely different materials are shaped as master or brake cylinders at their transition points and connected to one another in such a way that they are hydraulically impermeable.
• the loads described for a conventional, pot-like membrane seal that travels a certain distance in the axial direction without being able to roll off can be compared with the loads that occur when deep-drawing steel or aluminum.
• the two end faces of the elastic jacket are hydraulically tightly connected to the bottom of the guide flange and the piston back of the master piston. If the piston rod connected directly to the piston - with the outside diameter of the piston rod being the same size as the inside diameter of the hollow body - is pushed in the direction of the cylinder bottom, whereby the cylinder bottom has an opening that is connected to a liquid line, a volume reduction in the master cylinder and a static pressure increase.
• the elastic jacket is expanded by the connection on the guide flange base and the piston back due to the axially directed displacement, and the oil pressure generated in the cylinder presses the inner ring diameter of the elastic jacket against the outer diameter of the piston rod.
• the oil displaced in the master cylinder flows through the fluid line into the brake cylinder.
• the two end ring surfaces of the elastic jacket are each hydraulically tightly connected to the piston crown and the cylinder crown, the cylinder crown having an opening which is connected to the fluid line.
• the inflowing oil presses the piston on the piston head, on the piston rod of which a brake shoe is attached in the front area, in the axial direction forward on a rim wall or other brake body, e.g. a brake disc.
• the piston rod of the master cylinder and the inside diameter of the brake cylinder are coated with a lubricious material and protected against dirt, dust and moisture on the outside by means of a scraper or other sealing element, so that the friction that when resting and expanding the elastic jacket on the piston rod.
• the inside diameter of the brake cylinder arises is kept as small as possible.
• This inventive design of the hollow body enables use for rim and disc brakes.
• a ball joint with attached pipe section is used for the floating caliper brake.
• this version also takes on the task of the guide pin, the outside diameter of the pipe section being somewhat smaller than that of the ball joint, so that the appearance of a ball pin results.
• a continuous bore leads from the face of the pipe section to the breakthrough Ball that is so large in diameter that it can accommodate the round disc brake cylinder and there is a minimal air gap so that the brake cylinder can move in an oscillating manner.
• a longitudinal section is worked into the circular ring of the pipe section in the axial direction of the bore.
• This slot receives a pin that is attached vertically to the brake cylinder and serves as an anti-rotation device.
• the slot has at least the length of the maximum oscillating movement of the brake cylinder including the pin width. of the pin diameter.
• Fig. 1 Detail of the brake cylinder in longitudinal section
• Fig. 2 Detail of the master cylinder in longitudinal section
• Fig. 3 top view of the embodiment, brake cylinder with hinged carriers on a vehicle tire
• Fig. 4 Side view of the foldable carrier, partially cut
• Fig. 5 Side view of the U-beam with a sectional view of the
• Fig. 6 top view of the sectional view of the disc brake
• Fig. 7 Sketchy view of a bicycle with attached
• Fig. 8 Sketchy view of a bicycle with attached
• a bicycle brake for a bicycle outlined in FIGS. 7 and 8 consists of a master cylinder with a hand lever (2) and a brake line (16) extending from the master cylinder, which acts directly on the brake cylinder (44), which acts on the brake disc (47) or in connection with a Y-distributor, to which two further brake lines (26) are connected and supply two brake cylinders (24) with brake fluid.
• the brake cylinders (24) are fastened to the bicycle by means of a U-shaped holder (40) or a foldable carrier (27).
• the carrier (27) should be on the bolt (29) on the frame or.
• Fork tube (38, 39) be firmly connected, e.g. by soldering.
• the brake cylinder (24) can be precisely aligned with the rim edge and through the slotted ball joint (21) in the carrier (27) by conical swiveling and oscillating movements distance can be set. If the brake shoe (19) is adjusted, the brake cylinder (24) is locked by the clamping action of the slotted ball joint (21), which is achieved by tightening the screws (32) over the slotted carrier (27).
• the carrier (27) can be pivoted through the angle ⁇ .
• the carrier (27) has, in order to be pivotable, a hexagon bore running parallel to the radial direction below the receptacle of the ball joint (21), which has a round recess (28) in the central region of its depth, the depth of which is at least the length of the
• the fork tube (38, 39) closer to it has a hexagon (30) from the front end face (52) of the carrier (27) and a diameter which must be larger than the hexagonal corner dimension.
• the hexagons (30, 31) only have a beginning and an end where the two end faces (52, 53) of the hexagon bore of the carrier (27) are located.
• This support (27) has a recess in the central area of its hexagon bore, the diameter of which must be the same as maximum, as the hexagon key dimension and the length of which is at least as large as the length of the hexagon (31) that is attached to the End face (52) of the carrier (27) and the screw head of the screw (34). It is of independent inventive importance that another polygonal or toothed bolt can be used instead of a hexagon. If you now want to pivot the carrier (27), it must be pressed over the rear hexagon (30) in the direction of the fork tube (38, 39), using a pin that must be removed beforehand or a compression spring (33) that holds the carrier (27) presses on the screw head of the screw (34), which is used for locking and securing.
• (16) feeds directly via a Y distributor (not described in more detail), which divides the amount of fluid into the interior (22) of the two brake cylinders (24) attached on the left and right, the amount of fluid supplied depending on the distance to be traveled by the brake shoes (19 ) and the distribution of the amount of fluid in the two brake cylinders (24) is based on the physical laws of hydraulics.
• the bracket attached to the fork tube (38, 39) for receiving the brake cylinder unit does not have to be soldered or welded particularly parallel to the brake disc, since the parallelism of the brake pads to the brake disc can be adjusted due to the tapered pivotability of the ball joint in the split ball socket (25).
• This split ball socket (25) is pulled together, for example by screws, after the disc - brake pad is in parallel position and jams the ball joint (54), which is thus firmly connected to the bicycle frame.
• the axial bore in the ball joint (54) also serves as a guide for the floating brake cylinder (44).
• the slot (50) in the pipe socket, the ball joint (54) with the guide hose connector (49) serves as an anti-rotation device used for the disc brake cylinder (44).
• a thread is cut on one side of the hub, as is already known in the case of rear wheel hubs for attaching idle gear rings.
• a step must be left in front of the spoke flange and keyways or toothed tracks must be incorporated in the cut thread.
• the center of the brake disc (47) is designed so that the brake disc (47) with the wedges inserted or inserted can be pulled over the thread of the hub (35) and the brake disc (47) by means of a nut (48) on the hub ( 35) is secured.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Braking Arrangements (AREA)
• Transmission Of Braking Force In Braking Systems (AREA)
• Braking Systems And Boosters (AREA)
• Motorcycle And Bicycle Frame (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=4205354

Family Applications (1)

Country Status (7)

Families Citing this family (12)

Citations (4)

Family Cites Families (6)

• 1992
  • 1992-04-14 CH CH1222/92A patent/CH681525A5/de not_active IP Right Cessation
• 1993
  • 1993-03-31 DE DE59309058T patent/DE59309058D1/de not_active Expired - Fee Related
  • 1993-03-31 WO PCT/CH1993/000088 patent/WO1993021057A1/de active IP Right Grant
  • 1993-03-31 EP EP97115695A patent/EP0826585A3/de not_active Withdrawn
  • 1993-03-31 US US08/196,142 patent/US5533599A/en not_active Expired - Fee Related
  • 1993-03-31 AT AT93906420T patent/ATE172161T1/de not_active IP Right Cessation
  • 1993-03-31 CA CA002115568A patent/CA2115568A1/en not_active Abandoned
  • 1993-03-31 EP EP93906420A patent/EP0598074B1/de not_active Expired - Lifetime

Patent Citations (4)

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